Speech on vernal equinox and solar terms

Vernal equinox, summer solstice, autumn equinox and winter solstice are solar terms with obvious seasonal changes. People who were good at poetry and painting in ancient times left many excellent works in describing "Spring". Xu Xuan, a poet in the Tang Dynasty, wrote off the vernal equinox in his "Seven quatrains": "The rain falls lightly on the vernal equinox, and the slanting wind on the Liu 'an attracts guests back. In the north, when the season is late, I knew it was green. " Ouyang Xiu's Walking on the Sand has high literary attainments: "Rainy scenery, spring weather. Let a hundred flowers blossom. Draw a pair of Liang Xinyan, and the jade cage parrot sleeps alone. Ficus pumila is against the wall, and strawberry moss is all over the floor. There are songs in several places in the brothel. Suddenly, old things came to my mind and I frowned silently. "

At this time, most parts of China have entered the busy time of spring ploughing. There is a peasant proverb in Hebei: "The spring equinox starts with wheat, and the moment is worth a thousand dollars." In the northern hemisphere, the days get longer, the nights get shorter, and the sun shines directly on the equator.

A light rain last night turned into snow at night. After 8 o'clock in the morning, some cumulonimbus clouds in the east gradually dispersed, and the sky was as clean and blue as washed. The polluted air caused by smog for many days has been washed and purified, and the breeze is blowing gently, which has a refreshing feeling. People were delighted to find the second snow in the lunar calendar (the third snow in the Gregorian calendar), and rushed out of their homes to take pictures with their mobile phones and cameras. At this time, I can more and more appreciate the artistic beauty of Han Yu's Chun Xue: there is no fragrance in the New Year, and grass buds first appear in February. Snow is too late for spring, and it is intended to fly for the flowers on the courtyard trees.